public class Review1 {
    public static void main(String[] args) {
        int a = 10;
        float b = 1.5f;
        double c = 3.14;
        long d = 114514;
        byte f = 127;
        double sum = a + b + c + d + f;
        System.out.println("review my java knowledge");
        System.out.println(sum);
    }
}
